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Note 3 - Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($)
3 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Net income available to common shareholders $ 100,830 $ 52,716
Basic and diluted common stock (in shares) 7,263,508 7,263,508
Net Income per share - Basic and Diluted (in dollars per share) $ 0.01 $ 0.01